A hypothetical process, a hypothetical process 2 steps, vapor saturated to a saturated to 0oC is used for 03 a food from 20 c to 7, by indirect contact. The food contains a mass amount of 10 kg/min and 60% solids. In this first stage, a by-product containing 20% solids is formed, a rate of 2 kg/min at 40oC. The steam condensed completely. In the second step, the food at 70oC is cooled to 30oC using cold water by indirect contact. The cooling water enters at 10oC and comes out at 25oC. Determine the mass flows of steam and cold water required in this process. Also determine the solid content of the product that has been cooled. The specific heat of solids is 3.6 kJ/kgoC and the water is 4,184 kJ/kgoC.

Suproduto 2 kg/min 20% slidos 40 oC 1 2 Alimento 10 kg/min 60% slidos 20 oC Alimento Vazo? % slidos? 70 oC Alimento Vazo? % slidos? 30 oC Vapor saturado 130 oC Condensado 130 oC gua Vazo? gua 10 oC Vazo? 25 oC